// Cascader. The trigger reuses the wr-select look-and-feel; the panel
// is a horizontal row of columns where each column lists the children
// of the previously-active node. Picking a leaf commits the path.

@use '../../theme/styles' as theme;

.wr-cascader {
  --wr-cascader-color: var(--wr-color-dark);
  --wr-cascader-bg: var(--wr-color-white);
  --wr-cascader-border: var(--wr-color-light);
  --wr-cascader-radius: var(--wr-control-radius-md);
  --wr-cascader-padding-y: var(--wr-control-padding-y-md);
  --wr-cascader-padding-x: var(--wr-control-padding-x-md);
  --wr-cascader-font-size: var(--wr-control-font-size-md);
  --wr-cascader-line-height: var(--wr-control-line-height-md);
  --wr-cascader-col-width: 12rem;
  --wr-cascader-max-height: 16rem;

  display: inline-flex;
  vertical-align: middle;

  &--disabled {
    --wr-cascader-color: var(--wr-color-medium);
    --wr-cascader-bg: rgba(var(--wr-color-light-rgb), 0.35);
  }

  // Sizes — trigger on the control contract (sm 22 / md 30 / lg 36).
  &--sm {
    --wr-cascader-radius: var(--wr-control-radius-sm);
    --wr-cascader-padding-y: var(--wr-control-padding-y-sm);
    --wr-cascader-padding-x: var(--wr-control-padding-x-sm);
    --wr-cascader-font-size: var(--wr-control-font-size-sm);
    --wr-cascader-line-height: var(--wr-control-line-height-sm);
  }

  &--lg {
    --wr-cascader-radius: var(--wr-control-radius-lg);
    --wr-cascader-padding-y: var(--wr-control-padding-y-lg);
    --wr-cascader-padding-x: var(--wr-control-padding-x-lg);
    --wr-cascader-font-size: var(--wr-control-font-size-lg);
    --wr-cascader-line-height: var(--wr-control-line-height-lg);
  }

  &__trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    min-width: 12rem;
    appearance: none;
    background: var(--wr-cascader-bg);
    color: var(--wr-cascader-color);
    border: 1px solid var(--wr-cascader-border);
    border-radius: var(--wr-cascader-radius);
    padding: var(--wr-cascader-padding-y) var(--wr-cascader-padding-x);
    font-family: var(--wr-font-family-base);
    font-size: var(--wr-cascader-font-size);
    line-height: var(--wr-cascader-line-height);
    cursor: pointer;
    text-align: left;
    transition:
      border-color var(--wr-transition-base),
      box-shadow var(--wr-transition-base);

    &:focus-visible {
      border-color: var(--wr-color-primary);
      @include theme.focus-ring;
    }

    &:disabled {
      cursor: not-allowed;
    }
  }

  &--open &__trigger {
    border-color: var(--wr-color-primary);
    box-shadow: 0 0 0 3px rgba(var(--wr-color-primary-rgb), 0.15);
  }

  &__value,
  &__placeholder {
    flex: 1 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  &__placeholder {
    color: var(--wr-color-text-muted);
  }

  &__chevron {
    --wr-icon-size: 1rem;
    flex: 0 0 auto;
    color: var(--wr-color-medium);
    transition: transform var(--wr-transition-base);
  }

  &--open &__chevron {
    transform: rotate(180deg);
  }

  &__clear {
    --wr-icon-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.125rem;
    height: 1.125rem;
    border-radius: 999px;
    color: var(--wr-color-medium);
    cursor: pointer;
    transition:
      background 0.12s ease,
      color 0.12s ease;

    &:hover {
      background: rgba(var(--wr-color-dark-rgb), 0.06);
      color: var(--wr-color-dark);
    }
  }
}

.wr-cascader-overlay {
  padding-top: 0.25rem;
}

.wr-cascader-panel {
  // Option sizing — mirrored from the trigger size (panel is portaled, so it
  // can't inherit the host size class). Default md.
  --wr-cascader-opt-font: var(--wr-control-font-size-md);
  --wr-cascader-opt-py: 0.5rem;

  display: flex;
  background: var(--wr-color-white);
  border: 1px solid var(--wr-color-light);
  border-radius: var(--wr-border-radius-base);
  box-shadow: var(--wr-shadow-overlay);
  font-family: var(--wr-font-family-base);
  font-size: var(--wr-cascader-opt-font);
  overflow: hidden;

  &--sm {
    --wr-cascader-opt-font: var(--wr-control-font-size-sm);
    --wr-cascader-opt-py: 0.375rem;
  }

  &--lg {
    --wr-cascader-opt-font: var(--wr-control-font-size-lg);
    --wr-cascader-opt-py: 0.625rem;
  }

  .wr-cascader__col {
    list-style: none;
    margin: 0;
    // Inset padding so options read as rounded pills, matching the select panel.
    padding: 0.25rem;
    width: var(--wr-cascader-col-width, 12rem);
    max-height: var(--wr-cascader-max-height, 16rem);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;

    + .wr-cascader__col {
      border-left: 1px solid var(--wr-color-light);
    }
  }

  // Options mirror .wr-option (rounded pill, soft primary tint when active).
  .wr-cascader__opt {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: var(--wr-cascader-opt-py) 0.625rem;
    border-radius: var(--wr-border-radius-sm);
    color: var(--wr-color-dark);
    cursor: pointer;
    transition: background var(--wr-transition-short);

    &:hover {
      background: var(--wr-color-hover);
    }

    &--active {
      background: var(--wr-color-primary-soft);
      color: var(--wr-color-primary);
      font-weight: 500;
    }

    &--disabled {
      color: var(--wr-color-medium);
      cursor: not-allowed;
      opacity: 0.55;

      &:hover {
        background: transparent;
      }
    }
  }

  .wr-cascader__opt-label {
    flex: 1 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .wr-cascader__opt-arrow {
    --wr-icon-size: 0.875rem;
    flex: 0 0 auto;
    color: var(--wr-color-medium);
  }
}

// Touch pointers: grow the clear button and make the column option rows ~44px
// tall so each is a comfortable tap target. Fine pointers keep the compact
// desktop sizing above.
@media (pointer: coarse) {
  .wr-cascader__clear {
    --wr-icon-size: 1.125rem;
    width: 2rem;
    height: 2rem;
  }

  .wr-cascader-panel .wr-cascader__opt {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
  }
}